.nav-item.drop-down > .nav-link::after {
    content: " ▼";
    font-size: 0.7em;
    margin-left: 5px;
    color: #004e70;
}

.navbar-nav {
    list-style: none;
    display: flex;
    gap: 20px;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    padding: 10px 15px;
    display: block;
}

/* Submenu padrão: escondido */
.drop-down > ul {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    opacity: 0;
    visibility: hidden;
    padding: 10px 30px;
    background: #009b79;
    box-shadow: 0px 0px 30px rgb(127 137 161 / 25%);
    transition: all 0.3s ease;
    min-width: 180px;
    z-index: 999;
}

    .drop-down > ul > li {
        list-style: none;
    }

        .drop-down > ul > li > a {
            color: #fff !important;
            padding: 8px 0;
            display: block;
        }

            .drop-down > ul > li > a:hover {
                text-decoration: underline;
            }

/* Ao passar o mouse, mostra submenu */
.drop-down:hover > ul {
    opacity: 1;
    visibility: visible;
}

/* Setinha no pai */
/*.drop-down > a:after {
    content: "\25BE";*/ /* seta ▼ simples */
/*font-size: 0.7em;
    padding-left: 5px;
    color: #333;
}*/

.drop-down > a {
    cursor: pointer;
}

@media (max-width:991px) {
    .nav-menu ul {
        align-items: normal !important;
    }

    .drop-down > a {
        padding: 0 !important;
    }
}